scholarly journals IbMADS1 (Ipomoea batatas MADS-box 1 gene) is Involved in Tuberous Root Initiation in Sweet Potato (Ipomoea batatas)

2008 ◽  
Vol 102 (1) ◽  
pp. 57-67 ◽  
Author(s):  
Amy Tsu Ku ◽  
Yi-Shiuan Huang ◽  
Yu-Shu Wang ◽  
Daifu Ma ◽  
Kai-Wun Yeh
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root ◽  
Root Initiation ◽  
Mads Box

Effects of various hand-weeding programmes on yield and components of yield of sweet potato (Ipomoea batatas) grown in the tropical lowlands of Papua New Guinea

1992 ◽  
Vol 118 (1) ◽  
pp. 63-70 ◽  
Author(s):  
M. P. Levett
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root ◽  
Tuber Initiation ◽  
Weed Competition ◽  
Root Initiation ◽  
Tuber Weight ◽  
Marketable Tuber ◽  
Hand Weeding ◽  
Tropical Lowlands

SUMMARYThe effects of weed competition, harvest date and cultivar on sweet potato (Ipomoea batatas(L.) Lam.) yield and components of yield were investigated in three factorial experiments planted during the wet seasons of 1984 (Expt 1) and 1986 (Expts 2 and 3) in the tropical lowlands In Expts 1 and 2, the commencement of regular hand-weeding (every 14 days) was delayed for varying lengths of time following planting. In Expt 3, the duration of hand-weeding from planting onwards was varied. The main competing weed species following planting were Cyperus rotundus, C. brevifolius, Euphorbia geniculata and Portulaca oleracea. After canopy closure, E. hirta, Imperata cylindrica, Eleusine indica, Sida rhombifolia, Mollugo pentaphylla and Mimosa invisa were the predominant weeds to emerge and persist. Cultivars differed in their sensitivity to weed competition. In L431 both mean marketable root tuber weight and number of tubers/plant were severely reduced. However, in L44, tuber number was more sensitive than tuber weight: marketable tuber weight was significantly reduced only by prolonged weed competition (no weeding until 56 days after planting (DAP)). In Expts 1 and 2, delaying the commencement of weeding beyond 14 DAP significantly decreased vine weight, total yield and mean number of tubers/plant. In Expt 3, prolonging regular weeding until 14 DAP and longer significantly increased total and marketable tuber yield and mean number of tubers/plant.Effects of weed competition in the early part of the season during the first 28–42 DAP substantially reduced crop production in the later part of the growth cycle (after 110 DAP). This was probably due to a partial suppression of vine growth early on, which reduced tuberous root initiation and thus limited the number of root tubers that could develop in the later stages of crop growth. Hand-weeding during the period 28–42 DAP also appeared to have a detrimental effect on tuber initiation as a result of mechanical root disturbance at this sensitive period of root differentiation. There was also a trend towards lower yields when the crop was regularly hand-weeded after 56 DAP, probably due to disturbance of the vine canopy.The critical period for weed competition commenced at or before 14 DAP, possibly as early as 7 DAP, and did not continue beyond 56 DAP. In order to avoid weed competition and the detrimental mechanical effects of hand-weeding, an optimum hand-weeding programme for sweet potato in the tropical lowlands of will probably involve (i) keeping the crop weedfree for the first 14–21 DAP; (ii) no crop disturbance during the period of maximum tuberous root initiation (from c. 21–28 DAP until 42–56 DAP); (iii) clean weeding at c. 56 DAP; and (iv) minimal or no weeding after 56 DAP. Weeding during the period 7–14 DAP is particularly important.

scholarly journals Genome-Wide Identification and Expression Analysis of the MADS-Box Gene Family in Sweet Potato [Ipomoea batatas (L.) Lam]

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhengwei Shao ◽  
Minhong He ◽  
Zhipeng Zeng ◽  
Yanzhu Chen ◽  
Amoanimaa-Dede Hanna ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Growth And Development ◽  
Ipomoea Batatas ◽  
Expression Patterns ◽  
Tuberous Root ◽  
Mads Box ◽  
Mads Box Genes ◽  
Fibrous Root ◽  
Genome Wide ◽  
Mads Box Gene

MADS-box gene, one of the largest transcription factor families in plants, is a class of transcription factors widely present in eukaryotes. It plays an important role in plant growth and development and participates in the growth and development of flowers and fruits. Sweet potato is the seventh most important food crop in the world. Its tuberous roots, stems, and leaves contain a large number of proteins, lipids, carotenoids, anthocyanins, conjugated phenolic acids, and minerals, which have high edible, forage, and medicinal value, and is also an important energy crop. At present, MADS-box genes in sweet potato have rarely been reported, and there has been no study on the genome-wide identification and classification of MADS-box genes in Ipomoea batatas. This study provided the first comprehensive analysis of sweet potato MADS-box genes. We identified 95 MADS-box genes, analyzed the structure and protein of sweet potato MADS-box genes, and categorized them based on phylogenetic analysis with Arabidopsis MADS-box proteins. Chromosomal localization indicated an unequal number of MADS-box genes in all 14 chromosomes except LG3, with more than 10 MADS-box genes located on chromosomes LG7, LG11, and LG15. The MADS domain and core motifs of the sweet potato MADS-box genes were identified by motif analysis. We identified 19 MADS-box genes with collinear relationships and analyzed duplication events. Cis-acting elements, such as light-responsive, auxin-responsive, drought-inducible, and MeJA-responsive elements, were found in the promoter region of the MADS-box genes in sweet potato, which further indicates the basis of MADS-box gene regulation in response to environmental changes and hormones. RNA-seq suggested that sweet potato MADS-box genes exhibit tissue-specific expression patterns, with 34 genes highly expressed in sweet potato flowers and fruits, and 19 genes highly expressed in the tuberous root, pencil root, or fibrous root. qRT-PCR again validated the expression levels of the 10 genes and found that IbMADS1, IbMADS18, IbMADS19, IbMADS79, and IbMADS90 were highly expressed in the tuberous root or fibrous root, and IbMADS18, IbMADS31, and IbMADS83 were highly expressed in the fruit. In this study, the molecular basis of MADS-box genes of sweet potato was analyzed from various angles. The effects of MADS-box genes on the growth and development of sweet potato were investigated, which may provide a certain theoretical basis for molecular breeding of sweet potato.

scholarly journals Seleção de genótipos de batata-doce quanto à eficiência ao uso do fósforo em solos da região de cerrado

2013 ◽  
Vol 4 (4) ◽  
pp. 356-364
Author(s):  
Luziano Lopes Da Silva ◽  
Márcio Antônio Da Silveira ◽  
Rodrigo Ribeiro Fidelis ◽  
Rodrigo de Castro Tavares ◽  
Valéria Gomes Momenté ◽  
...  
Keyword(s):  
Experimental Design ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Tuberous Root ◽  
Phosphorus Fertilization ◽  
Germplasm Bank ◽  
Randomized Block Design ◽  
The Family ◽  
Selection Of

The sweet potato (Ipomoea batatas (l.) Lam.) Lam) is a plant that produces tuberous root belonging to the family convolvulácea explored in practically all states of Brazil. The objective of this work was to select genotypes of the sweet potato as the efficiency of phosphorus use in cerrado soils with high and low availability of this nutrient. Were evaluated nine genotypes of sweet potato coming from the germplasm bank from the Federal University of the Tocantins, Brazil. The experimental design was in randomized block design with three replications being nine genotypes grown in two environments with low and high phosphorus availability, using doses of phosphorus fertilization from 20 and 120 kg ha-1 P2O5, applied at planting. To select genotypes suitable for environments proposed was used methodology for selection of the efficient use and response to phosphorus fertilization (efficiency and response). Genotype Amanda was classified as efficient and responsive, Barbara, Julia, Marcela and Carolina Vitoria as efficient, but not responsive and Livia, Duda, Ana Clara and Beatriz were classified as non-efficient, responsive but the absorption and utilization of phosphorus.

scholarly journals Molecular characterization of genes encoding isoamylase-type debranching enzyme in tuberous root of sweet potato, Ipomoea batatas (L.) Lam.

2016 ◽  
Vol 33 (5) ◽  
pp. 351-359
Author(s):  
Moe Nabemoto ◽  
Riho Watanabe ◽  
Mizuho Ohsu ◽  
Kaname Sato ◽  
Motoyasu Otani ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root ◽  
Debranching Enzyme ◽  
Genes Encoding

A new MADS-box gene (IbMADS10) from sweet potato (Ipomoea batatas (L.) Lam) is involved in the accumulation of anthocyanin

2005 ◽  
Vol 275 (1) ◽  
pp. 44-54 ◽  
Author(s):  
Antonio G. Lalusin ◽  
Koichi Nishita ◽  
Sung-Hyung Kim ◽  
Masaru Ohta ◽  
Tatsuhito Fujimura
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Mads Box ◽  
Mads Box Gene

Sweet Potatoes (Ipomoea batatas) And Inaccuracies of the Spanish Chroniclers. A Chapter in the History of Hispanic American Food

2019 ◽  
Author(s):  
Exio Isaac Chaparro-Martinez ◽  
Rafael Cartay ◽  
Luis Ricardo Dávila
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root ◽  
Hispanic American ◽  
Sweet Potatoes ◽  
History Of

In American chronicles of the sixteenth and seventeenth centuries mention is made of the edible tuberous root sweet potato<br>

Effect of high pressure on the saccharification of starch in the tuberous root of sweet potato ( Ipomoea batatas )

2017 ◽  
Vol 231 ◽  
pp. 105-110 ◽  
Author(s):  
Toru Shigematsu ◽  
Naho Furukawa ◽  
Ryo Takaoka ◽  
Mayumi Hayashi ◽  
Shoji Sasao ◽  
...  
Keyword(s):  
High Pressure ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root
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